How does a scientist answer a scientific question?
How does a scientist answer a scientific question?
Scientists find answers using tests: When scientists want to answer a question, they search for evidence using experiments. An experiment is a test to see if their explanation is right or wrong. Evidence is made up of the observations a scientist makes during an experiment.
Why is the scientific process important?
It provides an objective, standardized approach to conducting experiments and, in doing so, improves their results. By using a standardized approach in their investigations, scientists can feel confident that they will stick to the facts and limit the influence of personal, preconceived notions.
How is scientific knowledge gained?
As we observe the facts and behaviour so ideas form about their meaning. From these ideas we develop hypotheses to explain them. In pure science it should be possible to repeat the same tests, conducted under the same conditions, and accurately predict the outcome each time. …
Which of the following is the best definition for Nutrition Science?
Which of the following is the best definition for nutrition science? It is the study of the composition of foods, how the body is nourished, and how nourishment affects health. cannot be made by the body or made in sufficient quantities and therefore must be consumed to maintain health.
What is the best definition of nutrition?
Nutrition: 1: The process of taking in food and using it for growth, metabolism, and repair. Nutritional stages are ingestion, digestion, absorption, transport, assimilation, and excretion. 2: A nourishing substance, such as nutritional solutions delivered to hospitalized patients via an IV or IG tube.
What are the three most basic functions of nutrients?
Nutrients have one or more of three basic functions: they provide energy, contribute to body structure, and/or regulate chemical processes in the body. These basic functions allow us to detect and respond to environmental surroundings, move, excrete wastes, respire (breathe), grow, and reproduce.
Which nutrients contain energy?
The nutrients that provide energy are commonly referred to as macronutrients (carbohydrates, lipids, and proteins). Carbohydrates and proteins provide a similar amount of energy per gram of food.